IP Telephony and Phones

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Hello, We are currently using a Be6000 system and when we schedule a call forwarding on our phones (model 7945) to external numbers, it works perfectly when the original call comes from an internal position, but when it is an external call then this ...

call forwarding.png
Translator by Community Manager
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hello everyone i have a customer want update CUCM from 7.1.5 to 9 and i have update it OK on a VMwarebut now they want use their MCS 7835 to run the CUCM 9.....now can i use USB device to install ? because the CUCM 9 ios is too big then DVD.....

bo liu by Level 4
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Hi guys,recently i have configured the dot1x security feature on the cisco c3650x switches with IOS 15.2(1)E. But when I added voice vlan to the port, the ip phone can't register.My switch port configuration as below:interface GigabitEthernet0/47 swi...

I'm having an issue adding a 2nd PRI. I'm guessing it's something obvious and I'm hoping a fresh pair of eyes can pick out the issue.  The PRI on 0/0/0 works fine but the PRI on 0/0/1 continually flips between AWAITING_ESTABLISHMENT and TEI_ASSIGNED....